Paper material and hood cover embodying the same



Sept. 17, 1929. w. WRIGHT PAPER MATERIAL AND HOOD COVER EMBODYING THE SAME Filed Jan. 29, 1925 I Svwentor I W fykz QZ a" M 11 Patented Sept. 17, 1929 UNITED STATES PATENT OFFICE WILB'UR L. WRIGHT, OF FULTON, NEW YORK, ASSIGNOR ,TO OSWEGO FALLS CORIORA- TION, OF FULTON, NEW YORK, A CORPORATION OF NEW YORK PAPER MATERIAL AND HOOD COVER EMBOIDYING THE SAME Application filed January 29, 1928. Serial No. 615,690.

This invention relates to paper or fibrous material hood covers for containers having annular rims o-r shoulders at the exteriors of their mouths under which the cover skirt can be contracted or engaged to lock or secure the'cover over and protecting the container mouth, and the. objects and nature of the invention will be readily understood by those skilled in the art in the light of the following explanations of the accompanying drawings applied and secured and that has a skirt embodying a securing portion possessing certain peculiar characteristics.

With these and other objects in view my invention consists of paper material possessing certain peculiar characteristics as more fully and particularly set forth.and specified hereinafter, and my invention also consists in the paper material hood cover sub- ?itantially as hereinafter set forth and specied. Referring to the accompanying drawings:-

Fig. 1 shows a single ply-sheet of paper or a paper blank from which the cover of my inventioncan be drawn by suitable dies.

Fig. 2 is a side elevation of a cover of my invention drawn or pressed up from said blank and having its skirt embodying a securingportion or portions in accordance with my invention.

Fig. 3 is a side elevation showing the cover ofFig. 2 secured on a container mouth in accordance with my invention.

Fig. 4 shows the cover and container mouth, of Fig. 3 in vertical section.

In the drawings, the moutlf portion of a container, such as a so-called milk bottle, is shown, internally sealed by a disk closure, such as a so-called milk cap 1.

The mouth or annular top of the bottle extends upwardly a distance above the internal seat for the disk 1, and terminates in an annular usually rounded top edge 2. The

bottle mouth is externally surrounded by an enlargement or rim, the under side 3, of which forms a downwardly facing shoulder, that merges downwardly into the bottle neck.

The paper or fibrous material sheet 4, of Fig. 1, is pressed or drawn by dies or other suitable means into approximately permanent flanged or skirted form having the fiat .circular top or center 5 and the annular depending flaring flange or skirt 6, at its free edge portion divided by longitudinal cuts or slits 7 into depending free end sections or tongues 8.

The slits 7 can be formed during the process of producing the hood cover from the fiat sheet 4, if so desired.

The sheet 4 is usually composed of any comparatively thin fiexble commercial paper material suitable for use on containers for milk and other food products, and this paper is printed or lithographed at its center 5,

before, after or during the process of forming the cover. Market conditions require advertising, titles, directions, or other legible information-imparting characters on the central portions or tops 5 of paper hood covers, and these characters are applied to the paper by suitable mechanicalprocess, such as by printing. The paper can be thus imprinted before, after or during the hood forming process, and hence the center or top 5 must be in condition to receive printing and after having.been printed must not be subjected to treatment to destroy the legibility or neat appearance of the printing. The paper of the cover is hence preferably not coated or subjected to substances, except about as hereafter recited, so that the cover top remains untreated.

The cover top 5 1s ofa diameter to cover and close the container mouth and fit down on the top edge 2, and the skirt is of a length to externally surround the bottle mouth and rim and extend down on the bottle neck or at least fit in under the .exterior rim of the mouth to such extent as may be necessary to securethe cover down on the bottle mouth.

The cover skirt, or a portion thereof, constitutes the securing or holding part of the cover and possesses the characteristics of becoming soft,-pliable or moldable when heated to a workable temperature and of rapidly cooling and becoming stifi' or set at atmospheric or climatic temperatures and so remaining at. such temperatures, of not adhering to glass when either soft or hard or stifl', of adhering to paper or like fibrous material, of being without objectionable odor and harmless to food products, of not being objectionably brittle or frangible when 'set or stiff and not being of objectionable color, of being impervious to water and moisture and not attracting flies and vermin.

The paper or paper material possesses these characteristics when treated or coated with a composition comprising carnauba wax and paraflin. These products are will known to commerce, and are mixed togethenin any proportions suitable to gain the ends sought, say, in approximately the proportions of five parts of carnauba wax to one part of paraflin wax, more or less. These product are reduced to the liquid state by heat and are thus thoroughly mixed to produce the desired composition and while in the liquid state, the composition, or thelequivalent thereof, is applied to the lower or free end portions ofthe skirts of the hood covers in any suitable manner. The cover skirts can be dipped in the liquid composition, or the liquid composition can be applied to the skirts to coat the desired portions thereof, by any suitable applicator, or in any other suitable manner, or by any other means.

The composition quickly drys and sets on the paper as it coo s to climatic or atmospheric temperatures, and the paper thus treated and coated possesses the hereinbefore mentioned characteristics.

The cover skirts are thus treated or coated, preferably at their free or lower edge portions, only, from their lower edges upwardly fora portion of the length of each skirt, i. e., such a distance as maybe necessary to provide each cover with a securing portion of the required length toRcurethe cover to the con-- tainer mouth by locking under the exterior rim or enlargement of the container mouth.

The composition preferably coats the inner and outer surfaces of the lower portion of the cover skirt and adheres thereto. The cover is applied to the container mouth, and while the securing portion thereof is soft and pliable '(havingbeen heated before or after application to the container) the skirt is annularly and radially pressed in and contracted (by any suitable means or by hand) so as-to fit in under the' container mouth rim and around 1 the container neck, and is thus held if need be while the securing portion of the skirt cools, sets, and becomes stiff and approximately rigid in such securing position contracted under the bottle rim.

Where the cover is formed with .the skirt having its free or lower portion divided to form the plurality of tongues or sections, each free end section from its lower edge upwardly for a suitable portion of the length thereof, is coated with the composition or otherwise treated to constitute a part of the hereinbefore mentioned securing portion of the cover. Covers having their skirts thus divided and treated can be readily nested for economical packing and shipment, as the skirts are so formed as to flare or enlarge toward their free ends with the stiff treated free end skirt sections diverging downwardly.

There as another advantage in this flaring formation, inasmuch as the covers can be heated to soften their securing portions before application to the usually cold or chilled bottles. When thus applied to such bottles, the flare of the skirts prevents the soft wax coated skirt portions contacting and possibly being cooled by the chilled glass surfaces,

the diameter thereof by overlapping tucks or pleats as by causing the skirt sections to-lap circumferentially one over the other in a series completely around the skirt and adhere tightly together by reason of the composition thereon. The composition on the skirt sections will tightly cement together the overlapping sections without adhering to the glass surface and said composition will quickly set rendering the skirt securing portion still and more or less rigid rendering it impossible to 'remove the cover from the container without separating the skirt sections in such manner as to clearly show that the same has been removed, should the coverbe reapplied after such removal. I

Carnauba wax will adhere to paper and like fibrous material when sufliciently softened by heat, but will not adhere to surfaces of glass and the like. The best grades of this wax are of a light pleasing color but somewhat expensive in cost, and are inclined to be somewhat brittle and frangible. Paralfin wax,(i adheres to glass surfaces and is not adopte for my purposes but I gain certain" advantages y using carnauba wax diluted by a small proportion of a high grade comparatively a melting point parafiinwaxor its equivalent. For mstance,1 what is' known as. re-

fined paraflin 138-140 melting point, can be advantageously mixed, in small proportion, with the carnauba wax, although I do not wish to so limitmy invention. I have suggested the proportion of five parts carnauba wax to one partof paraifin, but these proportions can be varied, say from one half part 0 paraflin to two parts paraflin.

The resulting composition is pleasing in color, will not adhere to glass and like surfaces, reduces the brittleness and frangibility of the carnauba wax, and melts at a comparatively high temperature and becomes soft and pliable at approximately 175 F.

I do not wish to limit all features of my invention to the slitted skirt cap.

This case is in part a continuation of my copending application Serial No. 597,361 filed Oct. 27 1922 for exteriorly capping milk bottles and the like.

What I claim is 1. A single ply paper material hood cap carrying a non-fouling binder comprising a high melting point quick settin ingredient non-adhesive on glass, and an ad esive agent in minor proportion.

2. A paper hood cap carrying a binder comprising a high melting point quick setting ingredient, and an adhesive agent, the presence of said' ingredient rendering the binder when carried by the paper material non-foulmg.

3. A hood cap for glass containers, composed of a sheet of paper material carrying a binder embodyin in minor proportion an agent that is an a hesive on lass, and a high melting point normally har agent non-adherent to glass, that imparts to the binder non-fouling properties.

4. A paper material hood cap carrying a binder comprising a small proportlon of paraffine and a hard high melting point quick setting ingredient such as carnauba wax.

In testimony whereof I have hereunto set my hand at Fulton, N. Y. January 16th, 1923.

WILBUR L. WRIGHT. 

